Top

Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and SPI Interface

Feature-Rich, 1-Channel DAC Family

Product Details

Key Features

Parametric specs for Precision DACs (< 1MHz)
Resolution (bits) 12
# Channels 1
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Int./Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 2.7
Supply Range (V) (max) 5.5
ICC (mA) (max) 0.19
Settling Time (µs) (typ) 6.3
Package/Pins TDFN/10
UMAX/10
Oper. Temp. (°C) -40 to +125
Budgetary
Price (See Notes)
1.34
View Less

Simplified Block Diagram

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Parameters

Parametric specs for Precision DACs (&lt; 1MHz)
Resolution (bits) 12
# Channels 1
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Int./Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 2.7
Supply Range (V) (max) 5.5
ICC (mA) (max) 0.19
Settling Time (µs) (typ) 6.3
Package/Pins TDFN/10
UMAX/10
Oper. Temp. (°C) -40 to +125
Budgetary
Price (See Notes)
1.34

Key Features

  • Single High-Accuracy DAC Channel
    • 12-Bit Accuracy Without Adjustments
    • ±1 LSB INL Buffered Voltage Output
    • Monotonic Over All Operating Conditions
  • Three Precision Selectable Internal References
    • 2.048V, 2.500V, or 4.096V
  • Internal Output Buffer
    • Rail-to-Rail Operation with External Reference
    • 6.3µs Settling Time
    • Output Directly Drives 2kΩ Loads
  • Small, 10-Pin, 2mm x 3mm TDFN and 3mm x 5mm µMAX Packages
  • Wide 2.7V to 5.5V Supply Range
  • Flexible 1.8V to 5.5V VDDIO
  • 50MHz, 3-Wire, SPI/QSPI/MICROWIRE/DSP-Compatible Serial Interface
  • Power-On-Reset to Zero-Scale DAC Output
  • User-Configurable Asynchronous I/O Functions: Active-Low CLR, Active-Low LDAC, Active-Low GATE
  • Three Software-Selectable Power-Down Output Impedances: 1kΩ, 100kΩ, or High Impedance
  • Low 155µA DAC Supply Current at 3V

Applications/Uses

  • Automatic Tuning and Optical Control
  • Data Acquisition
  • Gain and Offset Adjustment
  • Portable Instrumentation
  • Power Amplifier Control and Biasing
  • Process Control and Servo Loops
  • Programmable Voltage and Current Sources

Description

The MAX5703/MAX5704/MAX5705 single-channel, low-power, 8-/10-/12-bit, voltage-output digital-to-analog converters (DACs) include output buffers and an internal reference that is selectable to be 2.048V, 2.500V, or 4.096V. The MAX5703/MAX5704/MAX5705 accept a wide supply voltage range of 2.7V to 5.5V with extremely low power (< 1mW) consumption to accommodate most low-voltage applications. A precision external reference input allows rail-to-rail operation and presents a 100kΩ (typ) load to an external reference.

The MAX5703/MAX5704/MAX5705 have a 50MHz, 3-wire SPI/QSPI/MICROWIRE®/DSP-compatible serial interface. The DAC output is buffered and has a low supply current of 155µA (typical at 3V) and a low offset error of ±0.5mV (typical). On power-up, the MAX5703/MAX5704/MAX5705 reset the DAC outputs to zero, providing additional safety for applications that drive valves or other transducers which need to be off on power-up. The internal reference is initially powered down to allow use of an external reference.

The MAX5703/MAX5704/MAX5705 include a user-configurable active-low asynchronous input, AUX for additional flexibility. This input can be programmed to asynchronously clear (active-low CLR) or temporarily gate (active-low GATE) the DAC output to a user-programmable value. A dedicated asynchronous active-low LDAC input is also included. This allows simultaneous output updates of multiple devices.

The MAX5703/MAX5704/MAX5705 are available in 10-pin TDFN/µMAX® packages and are specified over the -40°C to +125°C temperature range.

Simplified Block Diagram

MAX5703, MAX5704, MAX5705: Functional Diagram MAX5703, MAX5704, MAX5705: Functional Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .